Curated OER
Missing Numbers - Addition Worksheet Set
Save some trees and use virtual worksheets. Here are 6 different virtual worksheets that require learners to determine the missing addend. Each page includes 12 problems to solve.
Curated OER
Two-Digit Addition, No Regrouping /Carry-on - Missing Digits
In this addition worksheet, 2nd graders fill in the missing digits in 20 addition problems. They do not regroup in the problems.